<?php

namespace backend\models;

use Yii;
use yii\base\Exception;
use yii\web\IdentityInterface;
use yii\base\NotSupportedException;
use yii\behaviors\TimestampBehavior;
use common\models\Gerent;


class GerentModel extends Gerent implements IdentityInterface
{

    const STATUS_DELETED = 0;
    const STATUS_ACTIVE = 10;
    public $password;

    public static $statusDesc = [0 => '禁用', 10 => '已激活'];

    /**
     * {@inheritdoc}
     */
    public function behaviors()
    {
        return [
            TimestampBehavior::class,
        ];
    }

    public static function allAdmin()
    {
        return static::find()->select(['username'])->indexBy('id')->column();
    }

    public function getStatusStr()
    {
        return static::$statusDesc[$this->status];
    }

    public function save($runValidation = true, $attributeNames = null)
    {
        if ($this->isNewRecord) {
            $this->created_at = time();
            $this->generateAuthKey();
            $this->generatePasswordResetToken();
            $this->setPassword($this->password);
        }
        $this->updated_at = time();
        return parent::save($runValidation,$attributeNames);
    }

    /**
     * 增加密码验证规则
     * @return array
     */
    public function rules()
    {
        $rules = parent::rules();
        $passwordRules = [['password', 'required']];
        return array_merge($rules, $passwordRules);
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'username' => '用户名',
            'auth_key' => '自动登录key',
            'password_hash' => '加密密码',
            'password_reset_token' => '重置密码token',
            'email' => '邮箱',
            'role' => '角色等级',
            'status' => '状态',
            'created_at' => '创建时间',
            'updated_at' => '更新时间',
            'password' => '密码'
        ];
    }

    /**
     * Finds an identity by the given ID.
     * @param string|int $id the ID to be looked for
     * @return IdentityInterface the identity object that matches the given ID.
     * Null should be returned if such an identity cannot be found
     * or the identity is not in an active state (disabled, deleted, etc.)
     */
    public static function findIdentity($id)
    {
        return static::findOne(['id' => $id, 'status' => self::STATUS_ACTIVE]);
    }

    /**
     * Finds an identity by the given token.
     * @param mixed $token the token to be looked for
     * @param mixed $type the type of the token. The value of this parameter depends on the implementation.
     * For example, [[\yii\filters\auth\HttpBearerAuth]] will set this parameter to be `yii\filters\auth\HttpBearerAuth`.
     * @return void the identity object that matches the given token.
     * Null should be returned if such an identity cannot be found
     * or the identity is not in an active state (disabled, deleted, etc.)
     * @throws NotSupportedException
     */
    public static function findIdentityByAccessToken($token, $type = null)
    {
        throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
    }

    /**
     * Finds user by username
     *
     * @param string $username
     * @return static|null
     */
    public static function findByUsername($username)
    {
        return static::findOne(['username' => $username, 'status' => self::STATUS_ACTIVE]);
    }

    /**
     * Finds user by password reset token
     *
     * @param string $token password reset token
     * @return static|null
     */
    public static function findByPasswordResetToken($token)
    {
        if (!static::isPasswordResetTokenValid($token)) {
            return null;
        }

        return static::findOne([
            'password_reset_token' => $token,
            'status' => self::STATUS_ACTIVE,
        ]);
    }

    /**
     * Finds out if password reset token is valid
     *
     * @param string $token password reset token
     * @return bool
     */
    public static function isPasswordResetTokenValid($token)
    {
        if (empty($token)) {
            return false;
        }

        $timestamp = (int) substr($token, strrpos($token, '_') + 1);
        $expire = Yii::$app->params['user.passwordResetTokenExpire'];
        return $timestamp + $expire >= time();
    }

    /**
     * {@inheritdoc}
     */
    public function getId()
    {
        return $this->getPrimaryKey();
    }

    /**
     * {@inheritdoc}
     */
    public function getAuthKey()
    {
        return $this->auth_key;
    }

    /**
     * {@inheritdoc}
     */
    public function validateAuthKey($authKey)
    {
        return $this->getAuthKey() === $authKey;
    }

    /**
     * Validates password
     *
     * @param string $password password to validate
     * @return bool if password provided is valid for current user
     */
    public function validatePassword($password)
    {
        return Yii::$app->security->validatePassword($password, $this->password_hash);
    }

    /**
     * Generates password hash from password and sets it to the model
     *
     * @param string $password
     * @throws Exception
     */
    public function setPassword($password)
    {
        $this->password_hash = Yii::$app->security->generatePasswordHash($password);
    }

    /**
     * Generates "remember me" authentication key
     * @throws Exception
     */
    public function generateAuthKey()
    {
        $this->auth_key = Yii::$app->security->generateRandomString();
    }

    /**
     * Generates new password reset token
     * @throws Exception
     */
    public function generatePasswordResetToken()
    {
        $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time();
    }

    /**
     * Removes password reset token
     */
    public function removePasswordResetToken()
    {
        $this->password_reset_token = null;
    }
}
